As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:NA*SDR FILED OPEN* "EMER LT BAT 1 LO' DISPLAYED DURING TEST. EMERGENCY LTS DEF IAW MEL 33-50-4, DMP C/W. PLACARD INSTALLED. M807451 ASSIGNED. REPLACED EMER LIGHTING POWER SUPPLY BATTERY AS PER MM 33-51-01. OPS CK GOOD, REVERSED DMP OK TO CONT SERV. THIS CLEARS DEFERRAL M807451 PLACARD REMOVED